US1957933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet metal joint
Assignee: Individual
•
Filing: 1930-05-31
•
Granted: 1934-05-08
•
Expires: 1950-05-31
Abstract
No abstract record available.
Inventors
- 👤 Brandl Lillian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:28
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/72; E04B2/721; E04B1/00; E04B1/38; E04B1/61; E04B1/6108; E04B1/612; E04B1/6166; E04B1/617; E04D; E04D3/00; E04D3/36; E04D3/366; F; F16; F16B; F16B5/00; F16B5/0004; F16B5/0056; F16B5/0068; F16B5/0072; F16B5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1937-05-07 | 1937-11-06 | 1938-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-05-07 | 1941-11-06 | 1942-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-05-07 | 1945-11-06 | 1946-05-08 | $7700.00 | Window Closed / Lapsed |